since 2010

The members as of the publication are underlined.
[paper] = paper; [report] = report; [explanation] = explanation; [book] = book.


  • [paper] YASUDA, I.: Impact of the astronomical lunar 18.6-yr tidal cycle on El-Nino and Southern Oscillation. Scientific Reports, 8, 15206, 2018. [doi:10.1038/s41598-018-33526-4]
  • [paper] AOYAMA, M., Y. HAMAJIMA, Y. INOMATA, Y. KUMAMOTO, E. OKA, T. TSUBONO, and D. TSUMUNE: Radiocaesium derived from the TEPCO Fukushima accident in the North Pacific Ocean: Surface transport processes until 2017. Journal of Environmental Radioactivity, 189, 93-102, 2018. [doi:10.1016/j.jenvrad.2018.03.014]
  • [paper] OKA, E., M. ISHII, T. NAKANO, T. SUGA, S. KOUKETSU, M. MIYAMOTO, H. NAKANO, B. QIU, S. SUGIMOTO, and Y. TAKATANI: Fifty years of the 137A degrees E repeat hydrographic section in the western North Pacific Ocean. Journal of Oceanography, 74, 115-145, 2018. [doi:10.1007/s10872-017-0461-x]
  • [paper] GOTO, Y., I. YASUDA, and M. NAGASAWA: Comparison of Turbulence Intensity from CTD-Attached and Free-Fall Microstructure Profilers. Journal of Atmospheric and Oceanic Technology, 35, 147-162, 2018. [doi:10.1175/JTECH-D-17-0069.1]


  • [paper] HU, W., K. MURATA, S. FUKUYAMA, Y. KAWAI, E. OKA, M. UEMATSU, and D. ZHANG: Concentration and Viability of Airborne Bacteria Over the Kuroshio Extension Region in the Northwestern Pacific Ocean: Data From Three Cruises. Journal of Geophysical Research – Atmospheres, 122, 12892-12905, 2017. [doi:10.1002/2017JD027287]
  • [paper] TANAKA, T., I. YASUDA, K. KUMA, and J. NISHIOKA: Evaluation of the biogeochemical impact of iron-rich shelf water to the Green Belt in the southeastern Bering Sea. Continental Shelf Research, 143, 130-138, 2017. [doi:10.1016/j.csr.2016.11.008]
  • [paper] OKA, E., S. KATSURA, H. INOUE, A. KOJIMA, M. KITAMOTO, T. NAKANO, and T. SUGA: Long-term change and variation of salinity in the western North Pacific subtropical gyre revealed by 50-year long observations along 137 degrees E. Journal of Oceanography, 73, 479-490, 2017. [doi:10.1007/s10872-017-0416-2]
  • [paper] TANAKA, K., H. HASUMI, K. KOMATSU, S. ITOH, D. YANAGIMOTO, T. SAKAMOTO, K. NISHINA, and Y. Michida: On the physical oceanography in the Sanriku coastal area (in Japanese). Nippon Suisan Gakkaishi, 83, 644-647, 2017. [doi:10.2331/suisan.WA2432-2]
  • [paper] AOYAMA, M., Y. HAMAJIMA, Y. INOMATA, and E. OKA: Recirculation of FNPP1-derived radiocaesium observed in winter 2015/2016 in coastal regions of Japan. Applied Radiation and Isotopes, 126, 83-87, 2017. [doi:10.1016/j.apradiso.2016.12.003]
  • [paper] MIYAMOTO, M., E. OKA, D. YANAGIMOTO, S. FUJIO, G. MIZUTA, S. IMAWAKI, M. KUROGI, and H. HASUMI: Characteristics and mechanism of deep mesoscale variability south of the Kuroshio Extension. Deep-Sea Research I, 123, 110-117, 2017. [doi:10.1016/j.dsr.2017.04.003]
  • [paper] TANAKA, K., H. HASUMI, K. KOMATSU, S. ITOH, D. YANAGIMOTO, T. SAKAMOTO, M. ISHIZU, S. URAKAWA, and  Y. MICHIDA: Circulation in the Sanriku Ria Coastal Area (in Japanese). Bulletin on Coastal Oceanography, 54, 97-104, 2017.
  • [paper] KUMAMOTO, Y., M. AOYAMA, Y. HAMAJIMA, H. NAGAI, T. YAMAGATA, Y. KAWAI, E. OKA, A. YAMAGUCHI, K. IMAI, and A. MURATA: Fukushima-derived radiocesium in the western North Pacific in 2014. Journal of Radioanalytical and Nuclear Chemistry, 311, 1209-1217, 2017. [doi:10.1007/s10967-016-5055-3]


  • [paper] GOTO, Y., I. YASUDA, and M. NAGASAWA: Turbulence estimation using fast-response thermistors attached to a free-fall vertical microstructure profiler. Journal of Atmospheric and Oceanic Technology, 33, 2065-2078, 2016. [doi:10.1175/JTECH-D-15-0220.1]
  • [paper] KOBASHI, F., Y. ONIKATA, N. IWASAKA, Y. KAWAI, E. OKA, K. UEHARA, S.-I. ITO, M. ODAMAKI, and H. SASAKI: Small meanders of the Kuroshio Extension and associated northward spreading of warm water: Three-vessel simultaneous observations and an eddy-resolving ocean model simulation. Journal of Geophysical Research, 121, 5315-5337, 2016. [doi:10.1002/2016JC011969]
  • [paper] KOMURO, Y., G. DANABASOGLE, S. MARSLAND, X. Lin, S. MINOBE, A. PIRANI, T. SUZUKI, and I. YASUDA: Workshop on the Kuroshio current and extension system: Theory, observations, and ocean climate modelling-The workshop overview and outcomes. CLIVAR Exchanges, No. 69, Aug.2016, 1-5, 2016.
  • [paper] YASUDA, I.: Variability and mixing in the Kuroshio and impact on ecosystem and climate. CLIVAR Exchanges, No. 69. Aug.2016, 10-13, 2016.
  • [paper] SAITO, R., I. YASUDA, K. KOMATSU, H. ISHIYAMA, H. UENO, H. ONISHI, T. SETOU, and M. SHIMIZU: Subsurface hydrographic structures and the temporal variations of Aleutian eddies. Ocean Dynamics, 66, 605-621, 2016. [doi:10.1007/s10236-016-0936-0]
  • [paper] AOYAMA, M., Y. HAMAJIMA, M. HULT, M. UEMATSU, E. OKA, D. TSUMUNE, and Y. KUMAMOTO: 134Cs and 137Cs in the North Pacific Ocean derived from the TEPCO Fukushima Dai-ichi Nuclear Power Plant accident, Japan in March 2011: Part One – Surface pathway and vertical distributions. Journal of Oceanography, 72, 53-65, 2016. [doi:10.1007/s10872-015-0335-z]
  • [paper] ITOH, S., H. KANEKO, M. ISHIZU, D. YANAGIMOTO, T. OKUNISHI, H. NISHIGAKI, and K. TANAKA: Fine-scale structure and mixing across the front between the Tsugaru Warm and Oyashio Currents in summer along the Sanriku Coast, east of Japan. Journal of Oceanography, 72, 23-37, 2016. [doi:10.1007/s10872-015-0320-6]


  • [paper] TANAKA, K., K. KOMATSU, S. ITOH, D. YANAGIMOTO, M. ISHIZU, H. HASUMI, T.T. SAKAMOTO, S. URAKAWA, and Y. MICHIDA: Baroclinic circulation and its high frequency variability in Otsuchi Bay on the Sanriku ria coast. Journal of Oceanography, 2015. [doi:10.1007/s10872-015-0338-9]
  • [paper] KATSURA, S., E. OKA, and K. SATO: Formation Mechanism of Barrier Layer in the Subtropical Pacific. Journal of Physical Oceanography, 45, 2790-2805, 2015. [doi:10.1175/JPO-D-15-0028.1]
  • [paper] OKA, E., B. QIU, Y. TAKATANI, K. ENYO, D. SASANO, N. KOSUGI, M. ISHII, T. NAKANO, and T. SUGA: Decadal variability of Subtropical Mode Water subduction and its impact on biogeochemistry. Journal of Oceanography, 71, 389-400, 2015. [doi:10.1007/s10872-015-0300-x]
  • [paper] TANAKA, T., I. YASUDA, H. ONISHI, H. UENO, and M. MASUJIMA: Observations of current and mixing around the shelf break in Pribilof Canyon in the Bering Sea. Journal of Oceanography, 71, 1-17, 2015. [doi:10.1007/s10872-014-0256-2]
  • [paper] ITOH, S., I. YASUDA, H. SAITO, A. TSUDA, and K. KOMATSU: Mixed layer depth and chlorophyll a: Profiling float observations in the Kuroshio-Oyashio Extension region. Journal of Marine Systems, 151, 1-14, 2015. [doi:10.1016/j.jmarsys.2015.06.004]
  • [explanation] I. YASUDA: Effects of the moon and the sea on the climate (in Japanese). Chemistry Today, January, 36-37, 2015.


  • [paper] OKA, E., K. UEHARA, T. NAKANO, T. SUGA, D. YANAGIMOTO, S. KOUKETSU, S. ITOH, S. KATSURA, and L. D. TALLEY: Synoptic observation of Central Mode Water in its formation region in spring 2003. Journal of Oceanography, 521-534, 2014. [doi:10.1007/s10872-014-0248-2]
  • [paper] TURNEWITSCH, R., S. FALAHAT, J. STEHLIKOVA, K. OGURI, R. N. GLUD, M. MIDDLEBOE, H. KITAZATO, F. WENZHOEFER, K. ANDO, S. FUJIO, and D. YANAGIMOTO: Recent sediment dynamics in hadal trenches: Evidence for the influence of higher-frequency (tidal, near-inertial) fluid dynamics. Deep-Sea Research I, 90, 125-138, 2014. [doi:10.1016/j.dsr.2014.05.005]


  • [paper] KATSURA S., E. OKA, B. QIU, and N. SCHNEIDER: Formation and Subduction of North Pacific Tropical Water and Their Interannual Variability. Journal of Physical Oceanography, 43, 2400-2415, 2013. [doi:10.1075/JPO-D-13-031.1]
  • [paper] ANDO K., M. KAWABE, D. YANAGIMOTO, and S. FUJIO: Pathway and variability of deep circulation around 40N in the northwest Pacific Ocean. Journal of Oceanography, 69, 159-174, 2013. [doi:10.1007/s10872-012-0164-2]
  • [paper] FUJIO S., D. YANAGIMOTO, and K. ANDO: Deep Circulation – Observations under the Argo floats – (in Japanese). Kaiyo Monthly, 45, 50-56, 2013.
  • [paper] OKA E.: Mode water research based on Argo, shipboard observation, and high-resolution numerical model (in Japanese). Kaiyo Monthly, 45, 10-15, 2013.


  • [paper] OKA E. and S. KOUKETSU: Shipboard physical oceanographic observation in the Argo era (in Japanese). Kaiyo Monthly, 44, 640-641, 2012.
  • [paper] WAGAWA T., Y. YOSHIKAWA, Y. ISODA, E. OKA, K. UEHARA, T. NAKANO, K. KUMA, and S. TAKAGI: Flow fields around the Emperor Seamounts detected from current data. Journal of Geophysical Research, doi:10.1029/2011JC007530, 2012.
  • [paper] KOUKETSU S., H. TOMITA, E. OKA, S. HOSODA, T. KOBAYASHI, and K. SATO: The role of meso-scale eddies in mixed layer deepening and mode water formation in the western North Pacific. Journal of Oceanography, 68, 63-77, 2012. [doi:10.1007/s10872-011-0049-9]
  • [paper] OKA E., B. QIU, S. KOUKETSU, K. UEHARA, and T. SUGA: Decadal seesaw of the Central and Subtropical Mode Water formation associated with the Kuroshio Extension variability. Journal of Oceanography, 68, 355-360, 2012. [doi:10.1007/s10872-011-0049-9]
  • [paper] KAWABE M. and S. FUJIO: Effect of bottom slope in northeastern North Pacific on deep-water upwelling and overturning circulation. Journal of Oceanography, 68, 267-284, 2012. [doi:10.1007/s10872-011-0094-4]
  • [paper] OKA E. and B. QIU: Progress of North Pacific mode water research in the past decade. Journal of Oceanography, 68, 5-20, 2012. [doi:10.1007/s10872-011-0032-5]


  • [paper] TOMITA H., S. KOUKETSU, E. OKA, and M. KUBOTA: Locally enhanced wintertime air-sea interaction and deep ceanic mixed layer formation associated with the subarctic front in the North Pacific. Geophysical Research Letters, 38, L24607, doi:10.1029/2011GL049902, 2011.
  • [paper] OKA E., T. SUGA, C. SUKIGARA, K. TOYAMA, K. SHIMADA, and J. YOSHIDA: “Eddy resolving” observation of the North Pacific Subtropical Mode Water. Journal of Physical Oceanography, 41, 666-681, 2011. [doi:10.1175/2011JPO4501.1]
  • [paper] OKA E., S. KOUKETSU, K. TOYAMA, K. UEHARA, T. KOBAYASHI, S. HOSODA, and T. SUGA: Formation and subduction of Central Mode Water based on profiling float data, 2003-08. Journal of Physical Oceanography, 41, 113-129, 2011. [doi:10.1175/2010JPO4419.1]
  • [paper] SUKIGARA C., T. SUGA, T. SAINO, K. TOYAMA, D. YANAGIMOTO, K. HANAWA, and N. SHIKAMA: Biogeochemical evidence of large diapycnal diffusivity associated with the subtropical mode water of the North Pacific. Journal of Oceanography, 67, 77-85, 2011. [doi:10.1007/s10872-011-0008-5]


  • [paper] KAWABE M. and S. FUJIO: Pacific ocean circulation based on observation. Journal of Oceanography, 66, 389-403, 2010. [doi:10.1007/s10872-010-0034-8]
  • [paper] YANAGIMOTO D., M. KAWABE, and S. FUJIO: Direct velocity measurements of deep circulation southwest of the Shatsky Rise in the western North Pacific. Deep-Sea Research I, 57, 328-337, 2010. [doi:10.1016/j.dsr.2009.12.004]

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